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    <title>AkeebaBackup :: Filter Stack</title>
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<h1>What is this directory?</h1>

<p>In this directory, Akeeba Backup stores the stacked optional filters (Optional Filters in the Configuration page).
    Unlike
    regular filters which are always loaded, optional filters are only loaded when the user chooses to enable them. Each
    filter
    consists of two files: <var>filtername</var>.ini and <var>filtername</var>.php. The former contains the
    filter-specific
    configuration options and the later contains the actual filter code.</p>

<p>If you want to create new optional filters, put them in here. Do note that the INI file must always contain a boolean
    key named core.filters.<var>filtername</var>.enabled which controls the loading of this particular filter.</p>

<p>Optional filters are always named AEFilterStack<var>Filtername</var> so that the autoloader can find them.
    Platform-specific
    optional filter classes are named AEFilterStackPlatform<var>Filtername</var>.</p>
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